Dear sir,

please let me know wether b category seats have a fixxed common fee all over India or thefee structure is as per the individual sstate norms. If individual please let me know how much should we pay fee for b category seat in tamil nadu and karnataka.If it is a nationalwide fixed fee let me know it

dear student 
fee structure vary in every college according to the reputation . 
so, if you are talking about within a perticular state then all the coillege in a state are nearly same fees for MBBS . 
you can visit MCI , website , their they have mentioned the fee structure of every college clearly . 
and its not nationwide fixed , it vary in every govt college also . 
and let meknow for which college of karnataka , and tamilnadu , you are intrested in . 
regards 
kindlyu ap;prove